Device adapted for sharpening the blades of safety razors



Jan. 30, 1923. 1,443,401

H. SUN. 1 DEVICE ADAPTED FOR SHARPE THE BLADES OF SAFETY RAZORS v FILED MAR. 2, 1921 Jun 7 INVENTUR B H. Wei/Us 0 W,

M TURN. EYS

' Patented: Jan. 30, 1923.

unrrnn stares raisin earner tit t ltjil HENRY WATSON, or NEWPORT, WALES.

DEVICE ADAPTED FOR SHARPENING THE BLADES OF SAFETY Application filed March 2,

of the kind in which the blade is operated on by a pair of rollers mounted in a frame and making rolling contact one with an other, and a bar having a slot therein is mounted at its ends in the sides of the frame on an axis intermediate between the axes of the rollers for the purpose of guiding the blade.

lnthe specification of my British application for LettersPatent No. 143,335 I have indicated that steel rollers, hardened or not, may be employed for sharpening razor blades, and in devices in accordance with the present inventionv rollers of this material are preferably employed.

The object of the present invention is to provide a device of the kindreferred to, having improved means adapted to guide and limit the motion of the blade in accordance with the angle of the cutting edge thereof.

According to the invention the bar which is provided with a slot adapted to accommodate the blade to be operated upon, of greater width than the maximum thickness of the blade, is pivotally mounted in the frame and is associated with means adapted to secure the bar in the position into which it is rotated about its axis;

A device in accordanhe with the invention is illustrated by way of example in the accompanying drawings, in which:-

Figure l is an elevation partly in section of the device, and a Figure 2 a cross section thereof.

In the drawings 1 and 2 are the rollers pivoted respectively in collars 3, 3 and 4-, 4L, secured in slots in the sides 5 and 5 of the frame, of which 6 is the base, screws? and 7 being provided for regulating the pressure between the rollers which are rotated by means of the crank handle 8 secured to the pivot of the upper roller and driving through the spur wheels 9 and 9 the lower rollep i in full line the blade 16 another, a bar annons.

1921, Serial No. 449,074. i l

A bar 10 provided with a slot 11 and with pivots 12 and 13 is secured by these n holes in the sides of the frame, a clampmg nut i l being mounted on the screwed pivots pivot 13 and. serving to secure the slotted bar in the desired position, the projection 15 on the bar being' provided to :izuriiitate its adjustment. When the slotted bar isiu the position shown in dotted line in Figure 2, as will be observed, the blade cannot be moved atall, while when the bar is in the position shown 7 moved Obviously, in any posithrough the maximum angle. therefore, by arran 'ing the bar tion intermediate between the posit-ions in dicated the outer edge moved by hand, byraisino' orlowering the outer edge of the blade, through any angle less than the maximum and in this way the of the blade may be device may be adjusted to limit the angle' through which the outer ed e of the blade may be moved, in order to permit of blades haying cutting edges of differentangles being operated upon satisfactorily.

The frames of the devices are conveniently provided with means whereby they may be attached to'a table or the like when in use.

In use, a small quantity of a suitable abrasive or polishing composition is preferably applied to the surface of the rollers and the handle is turnedso as to cause the rollers to rotate in the direction indicated by the arrows in Figure 2.

Having now described my invention, what I claim as new by Letters Patent is A' device adapted for sharpening the blades of safety razors comprising a frame,

a pair of sharpening rollers mounted in the frame and making rolling contact one with in the sides of the frame on an intermediate between the axes of the rollers, said bar having a slot of a width greater than the maximum thickness of the blade, and

means whereby the bar may be secured in any position into which it is rotated about its axis to vary the angle through which the blade engaged within the slot may be moved during sharpening.

In testimony whereof I have signed my name to this specification, I o I H Al NRY 791530 N L and desire to secure pivotally mounted at its ends 

